inglehart



Mar. 27, 1923.- 1,449,411

W. A. INGLEHART OIL BURNER Filed June 50, 1921 2W '2 5 O l 9" I P 34 3 7 5 g I I3 55 I INVENTOR.

69 WALTER A.INGLEHART.

Patented Mar. 27, 1923.

UNITED STATES WALTER ANDREW INGLEHARI, 0F OAKVILLE, ONTARIO, CANADA.

OIL Brianna.

Application filed June 30, 1921.

To all whom it may concern:

Be it known that I, WALTER 'ANDRE? INGLEHART, a subjectof the King of Great Britain, and a resident of the town of Oakville, in the county of Halton, Province of Ontario, Canada, have invented certain new and useful Improvements in Oil Burners, of which the following is the specification.

My invention relates to improvements in oil burners and theobjectof the invention 18 First: to provide a. simple and cheap construction of step bearing for the atomizer shaft which will be durable and smooth running and through which the oil is fed to the atomizer.

Second: to devise simplemeans for auto inatically cutting off the oil supply as the speed of the atomizer shaft is decreased be low normal, such as may be independently controlled from the rooms of a house above the cellar. i

Third: to devise means for carrying off unburnt oil from the fire pot so that it willthe ash pit or on the cellar.

not spill into floor.

Fourth: to devise simple means for controlling the speed of the atomizer shaft.

Fifth: to provide a unitary driving means for feeding driving fluid to the driving mo- I tor of the burner and the oil to the atomizer and such that the water may be used so as to be circulated after use back into the supply pipe leading to the motor, andit consists essentially of the construction and arrangements of parts as hereinafter more particularly explained.

The figure represents a sectional View of my burner showing the fire pot thereon supported upon two bars of a furnace. grate.

1 and 2 indicate two bars of a furnace grate, 3 is a fire pot which is annular in form and provided. with flaring sides 4 and with a central orifice 5 around which extends an annular upwardly extending flange 6. The fire pot 3 is supported upon the bars 1 and 2 as indicated in the drawing, or may be supported by any other suitable means, 7 are lugs which extendinwardly from the edge of the orifice 5 for a purpose which will hereinafter appear, 8 are small orifices formed in the bottom ofthe fire pot and into which are secured the upper ends of short spill tubes 9, 10 is a sleeve provided with an externally threaded upperportion 11 and at its lower end with an annular horizontal Serial No. 481,713.

flange'12. 13 is a cylindrical fluid motor casing the upper open end of which is cov cred by the annular flange 12, such upper end being formed into an annular spill pan The flange 12 is secured to the bottom of the spill pan 14 by screws 15,16 are bolts to th-e lower end of which is secured the flange 12, thereby forming a support for the casing 13. 17 is an opening formed in the centre of the bottom of the casing 13 and from which extends an upwardly directed flange 18 in the form of a sleeve. The casing 13 is provided with depending portions 19 forming a U-shaped structure in the centre of the bottom of which is located a sleeve 20 having its lower portion internally threaded. 21 is a plug of hard wood such as lignum-vitae which is provided with a tapered upper end 22. i

The plug 21 is screwed into the sleeve 20 and is secured by a lock nut 23. 24 is anorifice which extends centrally through the plug 21, such orifice being provided with an enlarged internally threaded lower end 25. 26 is an atomizer-shaft which is tubular, the orifice thereof being in vertical alignment with the orifice 24. The shaft26 extends freely through the parts 18 and 10 and is H provided at its upper end with a tapered portion. 28 is an atomizer which is in the form of a conical dish provided with the usual air vanes 29.

The centre of the atomizer 28 is provided with a depending boss 30 through which extends a tapcred orifice 31 fitting the tapered upper end of the shaft 26. 32 is a ball bearing which is. supported upon the upper end of the part 10 and is secured in place by means of a bearing cap 33 which is screwed on to the threaded portion 11. 34 is a'rotor member provided with water receiving cups 35. The rotor 34 is secured in position by a set screw and is provided with a dependingflange 37 extending freely around the upper end of the part 18. 19 is awater injecting nozzle which extends tangentially into, the casing 13 so as to drivea stream of water against the cups 35 to drive the rotor 34."

38 is a constant speed electric motor provided with a shaft 39, 40 and 41 indicate pumps of any suitable construction which are driven from the.shaft.39. 42 is an oil supply pipe leading from any suitable. source to the pump 41. 43 is a pipe through which the Oil is discharged from the pump .41, the

pipe 43 being coupled at its upper end to the plug 21 by any suitable means such as indicated at 44. 45 is a control valve for regulating the flow of oil through the pipe 43. 46 is the shaft of the controlling valve 45. 47 is a gravity lever on which is mounted a weight 48. The upper end of the lever 47 is in the form of an acute angle so as to form an engaging tooth 49. 50 is a trip lever provided with a hook 51 engaging the tooth 49 so as to hold the lever 47 in its upper position. The trip lever 50 is pivotally mounted at 52 on a depending portion of the motor casing or any other suitable support.

53 is a magnetic solenoid the lever 50 forming the armature thereof. 54 is a coil of the solenoid 53, 55 is a collar of insulating material surrounding the upper end of the sleeve 20. 56 is a metal conducting ring which is carried by the collar 55. 57 is a collar of conducting material carried by the shaft 26. 58 are gravity arms carried by the collar 57 and adapted to rest when in their lowered position upon the outer edge of the conducting ring 56. 59 is a battery, 60 is a wire leading from one terminal of the battery 59 to the ring 56. 61 is a wire leading from the other terminal of the battery to the solenoid coil 54. 62 is a wire extending from the other end of the solenoid coil to the part 19 depending from the motor casing to which it is grounded. 63 is a wire which is tapped at one end into the wire 62 and connected at its opposite end to the normally open switch contact 64.

65 is a wire which is tapped at one end to the wire 60 and is connected at its opposite end to the switch contact 66. 67 indicates the push button of the switch by which the contacts 64 and 66 are bridged. 68 is a waste pipe leadingfrom the lower portion of the motor casing 13 and is adapted to discharge the used water into the receptacle or sump 69. 70 is a water supply pipe leading from the pump 40 to the nozzle 19*. 71 is a relief valve which is carried by the pipe 70 and is provided with a return pipe 72 to discharge the surplus water into the sump 69. 73 is a return pipe by which the water is returned by means of a pump 40 into the supply pipe 70 thereby forming a continuous circulation using the same quantity of water over and over again. 74 is a gas pilot light which is located in the fire pot 3 so that the jet is located below the upper edge of the flange 6 and therefore below the level of the flame blast which would blow such pilot light out.

From this description it will be seen that I have provided a very simple form of step bearing upon which the atomizer shaft is carried and. such as will be durable and smooth runnin which means are provided for the ready removal of the atomizer from the vaporizer shaft so that the bearings 32 may be readily gotten at by removing the cap 38. In which means are provided for disposing of the unburnt oil discharged into the fire pot, such oil passing through the spill tubes 9 into the spill pan 14 and from thence through the pipe 75 into the pipe 68 so as to be discharged into the water supply with the oil which passes to the inside of the flange 6, such oil being caught by the pan 14. In which simple means are provided for automatically cutting off the oil supply as the speed of the atomizer shaft decreases below normal, the gravity arms 58 dropping from the position indicated by dotted lines in the drawing into the position as shown by full lines so as to contact with the ring 56 thereby completing the circuit passing from the battery 59 through the wire 61, coil 54, wire 62, through the depending portion of the motor casing 13 to which it is grounded, the circuit passing through the metallic parts of the device to the collar 57, armsi58, ring 56 and wire 60 to the other terminal. of the battery 59.

Upon the closing of the circuit the solenoid core 53 draws up the lever 50 so as to free the gravity lever47 which drops. closing the valve 45 and cutting off the oil supply, this cut off may also be operated by pressing the push button 67 so as to close the switch and bridge the contacts 64 and 66, the circuit is thus closed from the battery 09 through the wire 65, switch contact 66, push button contact 67, switch contact 64. wire 63, solenoid coil 54 to the other terminal of the battery In which simple means are provided for controllingthe speed of the motor should the water pressure created in the pipe 7 0 rise above normal. The surplus water is forced through the relief valve 71 into the pipe 73 and is discharged into the sump 69.

The water discharged into the sump is returned through the pipe 73 by the pump 40 so as to be re-used. And finally in which a single motor is utilized to force the oil through the pipe 43 and shaft 26 to the atomizer and for forcing the water through thepipe 70 to the nozzle 19.

lVhat I claim as my invention is:

1. In an oil burner, the combination with a fire pot having a central orifice and an oil discharge opening, an annular flange between the orifice and the discharge opening. a spill pan supported beneath the central orifice and the discharge opening of the tire pot, an atomizer located concentrically of the flange, a fluid motor for driving the atomizer. a fluid exhaust for the'motor, and an oil discharge leading from the spill pan into the fluid exhaust.

2. In an oil burner, a fire pot having a central orifice, a flange surrounding the orifice. a spill tube depending from the 'fire pot at the outside of the opening, a casing depending from the fire pot, a vertical shaft journalled in the casing, a spill pan carried by the casing t extend beneath the central orifice and spill tube of the fire pot, a bucket wheel carried by the shaft within the easing, fluid means for impelling the wheel, a fluid exhaust from the casing, and a discharge pipe extendingfrom the spill pan into the fluid exhaust.

3. In an oil burner, the combination with an atomizer, and ashaft upon which the atomizer is carried, of a fluid driven motor for the shaft, an injecting nozzle for the motor, a supply pipe for the nozzle, a fluid exhaust receiver, a fluid exhaust pipe leading intothe receiver and a pump for returning the fluid from the receiver into the' supply pipe; k p

at. In an oil burner, thecombination with an atomizer and shaft upon which the atomizer is carried of a fluid driven motor for the shaft, an injecting nozzle for the motor, a fluid supply pipe leading to. the nozzle, a fluid exhaust receiver, a fluid exhaust leading into the receiver, means for returning the fluid from the receiver into the supply pipe, and means for controlling the fluid pressure in the supply pipe to prevent it rising above normal.

5. In an oil burner, thec ombination with an atomizer and" shaft upon which the atomizer is carried, of afluid driven motor for the shaft, an injecting nozzle for the motor, a fluid supply pipe leading to the nozzle, a fluid exhaust receiver, a fluid exhaust leading into the receiver, means for returning the fluid from the receiver into the supply pipe, means for controlling the lil fluidin the supply pipe to prevent it rising above normal, and means for returning the surplus fluid into the exhaust receiver.

6. In an oil burner, the combination with an atomizer shaft, atomizer and oil supply duct leading to the atomizenofa valve located in the oil supply duct, magnetic meansfor operating the valve as the speed of the atomizer shaft falls below normal.

7 In an oil burner, the combination with an atomizer shaft, atomizer and oil duct leading to the atomizer, of a valve located in the oil supply duct, a trippable gravity lever for operating the valve, a magnetic solenoid and co-acting mechanism for releasing the gravity lever, a stationary insulated contact ring carried by the burner, a gravity contact carried by the atomizer shaft and adapted to fall into contact with the ring as the speed of the shaft decreases below normal, and a suitable energized circuit of which the insulated ring forms a part for energizing the solenoid.

8. In an oil burner, the combination with a fire pot and motor casing, of a tubular atomizer shaft journalled in the casing and having a conical recess in its lower end, a lignum vitae plug carried by the motor casing having a tapered upper end fitting the recess of the atomizer shaft and having a central orifice, and an oil supply duct leading into the lower end of the orifice.

9. In an oil burner, the combination with the atomizer shaft having a conical recess at its lower end, of a plug having a central orifice for the admission of oil to the shaft and formed of such material as will form a close, non-leakable practically frictionless step bearing.

10. In an oil burner, the combination with the atomizer shaft having a conical recess at its lower end, of a plug having a central orifice for the admission of oil to the shaft and formed of such material as will form a close, non-leakable practically frictionless step bearing, of a suitable hearing at the upper end of the shaft whereby the shaft is held vertically in its step bearing.

WALTER ANDREW INGLEHART. 

